<template>
	<view class="preview"  v-if="currentInfo">
		<swiper circular :current="currentIndex" @change="swiperChange">
			<swiper-item v-for="(item,index) in classListNew" :key="item._id">
				<image v-if="readImages.includes(index)" @click="maskChange" :src="item.picurl" mode="aspectFill"></image>
			</swiper-item>
		</swiper>

		<!--遮罩层-->
		<view class="mask" v-if="show">
			<view class="goBack" :style="{top:getStatusBarHeight()+'px'}" @click="goBack">
				<uni-icons type="back" color="#fff" size="20"></uni-icons>
			</view>
			<view class="count">{{currentIndex+1}} / {{classListNew.length}}</view>
			<view class="time">
				<uni-dateformat :date="Date.now()" format="hh:mm"></uni-dateformat>
			</view>
			<view class="date">
				<uni-dateformat :date="Date.now()" format="MM月dd日"></uni-dateformat>
			</view>
			<view class="footer" v-if="currentInfo">
				<view class="box" @click="clickInfo">
					<uni-icons type="info" size="28"></uni-icons>
					<view class="text">信息</view>
				</view>
				<view class="box" @click="clickScore">
					<uni-icons type="star" size="28"></uni-icons>
					<view class="text">{{currentInfo.score}}分</view>
				</view>
				<view class="box" @click="clickDownload">
					<uni-icons type="download" size="23"></uni-icons>
					<view class="text">下载</view>
				</view>
			</view>
		</view>

		<!--信息弹窗-->
		<uni-popup ref="infoPopup" type="bottom">
			<view class="infoPopup">
				<view class="popHeader">
					<view></view>
					<view class="title">壁纸信息</view>
					<view class="close" @click="clickInfoClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<scroll-view scroll-y>
					<view class="content">
						<view class="row">
							<view class="label">壁纸ID:</view>
							<text selectable class="value">{{currentInfo._id}}</text>
						</view>
	<!-- 					<view class="row">
							<view class="label">分类:</view>
							<text class="value class">{{currentInfo.name}}</text>
						</view> -->
						<view class="row">
							<view class="label">发布者:</view>
							<text class="value">{{currentInfo.nickname}}</text>
						</view>
						<view class="row">
							<view class="label">评分:</view>
							<view class="value roteBox">
								<uni-rate readonly touchable :value="currentInfo.score" size="16" />
								<text class="score">{{currentInfo.score}}分</text>
							</view>
						</view>
						<view class="row">
							<view class="label">摘要:</view>
							<text class="value">{{currentInfo.description}}</text>
						</view>
						<view class="row">
							<view class="label">标签:</view>
							<view class="value tabs">
								<view class="tab" v-for="(item,index) in currentInfo.tabs" :key="index">
									{{item}}
								</view>
							</view>
						</view>
						<view class="copyright">
							声明: 本图片来自用户投稿, 非商业使用, 用于免费学习交流, 如侵犯了您的权益, 您可以拷贝壁纸ID举报至平台, 邮箱javasoeasy@126.com, 管理将
							删除侵权壁纸, 维护您的权益
						</view>
						
						<view class="safe-area-inset-bottom"></view>
					</view>
				</scroll-view>
			</view>
		</uni-popup>

		<!--评分弹窗-->
		<uni-popup ref="scorePopup" type="center" :mask-click="false">
			<view class="scorePopup">
				<view class="popHeader">
					<view></view>
					<view class="title">{{isScore?'评分过了~':'壁纸评分'}}</view>
					<view class="close" @click="clickScoreClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<view class="content">
					<uni-rate v-model="userScore" allow-half :disabled="isScore" disabled-color="#ffca3e"></uni-rate>
					<text class="text">{{userScore}}分</text>
				</view>
				<view class="footer">
					<button :disabled="!userScore || isScore" type="default" size="mini" plain @click="submitScore">确认评分</button>
				</view>
			</view>
		</uni-popup>
	</view>
</template>
<script setup lang="ts">
	import { ref } from 'vue';
	import {getStatusBarHeight} from '@/utils/system.js'
	import {onLoad,onShareAppMessage,onShareTimeline} from '@dcloudio/uni-app'
	import {apiSubmitScore, apiWriteDownload, apiGetDetailWall} from '@/api/apis.js'
	import { gotoHome } from '@/utils/common.js';

	const show = ref(true)
	const infoPopup = ref(null)
	const scorePopup = ref(null)
	//评分
	const userScore = ref(0)
	const classListNew = ref([])
	
	const currentId = ref(null)
	const currentIndex = ref(0)
	const readImages = ref([])
	
	const currentInfo = ref(null)
	
	const isScore = ref(false)
	
	//获取放入缓存的列表
	const classList = uni.getStorageSync("storageClassList") || []
	classListNew.value = classList.map(item=>{
		//这行代码的作用是: 在原对象的基础上, 增加一个字段(用原来的字段改出一个新字段)
		return {
			...item,
			picurl:item.smallPicurl.replace("_small.webp",".jpg")
		}
	})
	
	/**
	 * 分享页面
	 */
	onShareAppMessage((e)=>{
		return {
			title:"咸虾米壁纸",
			path:"/pages/preview/preview?id="+currentId.value+"&type=share"
		}
	})
	
	/**
	 * 分享朋友圈, 暂时不能用
	 */
	// onShareTimeline((e)=>{
	// 	return {
	// 		title:"咸虾米壁纸",
	// 		path:"classid="+queryParam.classid+"&name="+pageName
	// 	}
	// })
	
	
	
	/**
	 * 获取传参
	 */
	onLoad(async (options)=>{
		const {id,type} = options
		if(!id){
			gotoHome()
			return
		}
		currentId.value = id
		//如果是分享过来的, 或者是首页点击过来的, 就直接查详情
		if(type == 'share'){
			let res = await apiGetDetailWall({id})
			classListNew.value = res.data.map(item=>{
				return {
					...item,
					picurl:item.smallPicurl.replace("_small.webp",".jpg")
				}
			})
		}
		currentIndex.value  = classListNew.value.findIndex(item=>currentId.value == item._id)
		currentInfo.value = classListNew.value[currentIndex.value]
		userScore.value = currentInfo.value.score
		readImgsFun()
	})
	
	/**
	 * swiper滑动
	 */
	const swiperChange = (e)=>{
		const {current} = e.detail
		currentIndex.value = current
		currentInfo.value = classListNew.value[currentIndex.value]
		userScore.value = currentInfo.value.score
		readImgsFun()
	}
	
	const clickDownload = async ()=>{
		// #ifdef H5
		uni.showModal({
			content:"请长按保存壁纸",
			showCancel:false
		})
		// #endif
		// #ifndef H5
		try{
			uni.showLoading({
				title:"下载中...",
				mask:true
			})
			
			//上传下载记录
			let writeRes = await apiWriteDownload({
				classid:currentInfo.value.classid,
				wallId:currentInfo.value._id
			})
			
			//接口有5秒防刷机制
			if(writeRes.errCode != 0){
				throw writeRes
			}
			
			uni.getImageInfo({
				src:currentInfo.value.picurl,
				success:res=>{
					uni.saveImageToPhotosAlbum({
						filePath:res.path,
						success:(res)=>{
							uni.showToast({
								title:"成功保存到相册, 请查看",
								icon:"none"
							})
						},
						fail:err=>{
							if(err.errMsg == 'saveImageToPhotosAlbum:fail cancel'){
								uni.showToast({
									title:"保存失败, 请重新点击下载",
									icon:"none"
								})
								return
							}
							
							uni.showModal({
								title:"提示",
								content:"需要授权保存相册",
								success:res=>{
									if(res.confirm){
										uni.openSetting({
											success:(setting)=>{
												if(setting.authSetting['scope.writePhotosAlbum']){
													uni.showToast({
														title:"获取授权成功",
														icon:"none"
													})
												}else{
													uni.showToast({
														"title":"获取授权失败",
														"icon":"none"
													})
												}
											}
										})
									}
								}
							})
						},
						complete:()=>{
							uni.hideLoading()
						}
					})
				}
			})
		}catch(e){
			console.log(e);
			uni.hideLoading()
		}
		// #endif
	}
	
	/**
	 * 提交评分
	 */
	const submitScore =async ()=>{
		uni.showLoading({
			title:"加载中...."
		})
		let res = await apiSubmitScore({
			classid: currentInfo.value.classid,
			wallId:currentInfo.value._id,
			userScore:userScore.value
		})
		uni.hideLoading()
		if(res.errCode === 0){
			uni.showToast({
				title:"打分成功"
			})
			//
			classListNew.value[currentIndex.value].userScore = userScore.value
			uni.setStorageSync("storageClassList", classListNew.value)
			clickScoreClose()
		}
	}
	
	function readImgsFun(){
		readImages.value.push(
			currentIndex.value<=0?classListNew.value.length-1:currentIndex.value-1, 
			currentIndex.value, 
			currentIndex.value>=classListNew.value.length-1?0:currentIndex.value+1
		)
		readImages.value = [...new Set(readImages.value)]
	}
	
	/**
	 * 遮罩层的显示/隐藏
	 */
	const maskChange = () => {
		show.value = !show.value;
	}

	/**
	 * 点击信息弹窗
	 */
	const clickInfo = () => {
		infoPopup.value.open();
	}

	/**
	 * 关闭信息弹窗
	 */
	const clickInfoClose = () => {
		infoPopup.value.close();
	}

	/**
	 * 点击评分弹窗
	 */
	const clickScore = () => {
		if(currentInfo.value.userScore){
			isScore.value = true
			userScore.value = currentInfo.value.userScore
		}
		scorePopup.value.open();
	}

	/**
	 * 关闭评分弹窗
	 */
	const clickScoreClose = () => {
		scorePopup.value.close();
		userScore.value = 0
		isScore.value = false
	}
	
	/**
	 * 回退
	 * 对于分享的, 上一级退回到首页
	 */
	const goBack = ()=>{
		uni.navigateBack({
			success:()=>{
				
			},
			fail: () => {
				uni.reLaunch({
					url:"/pages/index/index",
				})
			}
		})
	}
</script>
<style scoped lang="scss">
	.preview {
		width: 100%;
		height: 100vh;
		position: relative;

		swiper {
			width: 100%;
			height: 100%;

			image {
				width: 100%;
				height: 100%;
			}
		}

		.mask {
			&>view {
				position: absolute;
				left: 0;
				right: 0;
				margin: auto;
				color: #fff;
			}

			.goBack {
				width: 38px;
				height: 38px;
				background: rgba(0,0,0,0.5);
				left: 30rpx;
				margin-left: 0;
				border-radius: 100px;
				top:0;
				backdrop-filter: blur(10rpx);
				border: 1rpx solid rgba(255,255,255,0.3);
				display: flex;
				align-items: center;
				justify-content: center;
			}
			
			.count {
				top: 10vh;
				width: fit-content;
				background: rgba(0, 0, 0, 0.3);
				font-size: 28rpx;
				border-radius: 40rpx;
				padding: 8rpx 28rpx;
				backdrop-filter: blur(10rpx);
			}

			.time {
				width: fit-content;
				font-size: 140rpx;
				top: calc(10vh + 80rpx);
				font-weight: 100;
				line-height: 1em;
				text-shadow: 0 4rpx rgba(0, 0, 0, 0.3);
			}

			.date {
				font-size: 34rpx;
				top: calc(10vh + 230rpx);
				text-shadow: 0 2rpx rgba(0, 0, 0, 0.3);
				width: fit-content;
			}

			.footer {
				background: rgba(255, 255, 255, .8);
				bottom: 10vh;
				width: 65vw;
				height: 120rpx;
				border-radius: 120rpx;
				color: #000;
				display: flex;
				justify-content: space-around;
				align-items: center;
				box-shadow: 0 2rpx 0 rgba(0, 0, 0, 0.1);
				backdrop-filter: blur(20rpx);

				.box {
					display: flex;
					flex-direction: column;
					align-items: center;
					justify-content: center;
					padding: 2rpx 12rpx;

					.text {
						font-size: 26rpx;
						color: $text-font-color-2;
					}
				}
			}
		}
		
		.popHeader {
			display: flex;
			justify-content: space-between;
			align-items: center;
			.title {
				color: $text-font-color-2;
				font-size: 26rpx;
			}
			.close {
				padding: 6rpx;
			}
		}

		.infoPopup {
			background: #fff;
			padding: 30rpx;
			border-radius: 30rpx 30rpx 0 0;
			overflow: hidden;
			scroll-view {
				max-height: 60vh;

				.content {
					.row {
						display: flex;
						padding: 16rpx 0;
						font-size: 32rpx;
						line-height: 1.7em;

						.label {
							color: $text-font-color-3;
							width: 140rpx;
							text-align: right;
							font-size: 30rpx;
						}

						.value {
							flex: 1;
							width: 0;
							padding-left: 10rpx; //我自己加的
						}

						.class {
							color: $brand-theme-color;
						}

						.roteBox {
							display: flex;
							align-items: center;

							.score {
								font-size: 26rpx;
								color: $text-font-color-2;
								padding-left: 10rpx;
							}
						}

						.tabs {
							display: flex;
							flex-wrap: wrap;

							.tab {
								border: 1px solid $brand-theme-color;
								color: $brand-theme-color;
								font-size: 22rpx;
								padding: 10rpx 30rpx;
								border-radius: 40rpx;
								line-height: 1em;
								margin: 0 10rpx 10rpx 0;
							}
						}
					}

					.copyright {
						font-size: 28rpx;
						padding: 20rpx;
						background: #f6f6f6;
						color: #666;
						border-radius: 10rpx;
						margin: 20rpx 0;
						line-height: 1.6em;
					}
				}
			}
		}

		.scorePopup {
			background: #fff;
			padding:30rpx;
			width: 70vw;
			border-radius: 30rpx;
			.content{
				padding: 30rpx 0;
				display: flex;
				justify-content: center;
				align-items: center;
				.text{
					color:#ffca3e;
					padding-left: 10rpx;
					width: 80rpx;
					line-height:1em;
					text-align: right;
				}
			}
			.footer{
				padding: 10rpx 0;
				display: flex;
				align-items: center;
				justify-content: center;
			}
		}
	}
</style>